Rolling shutter.



Patented Aug. 6, I90I.

No. 680,|0D.

P. H. WILSON.

ROLLING SHUTTEB.

I (Appliction filed Feb. 28, 1901.)

(No Model.)

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'UNITED STATES IAT'ENT OFFICE.

PEROY HUNT WILSON, OF OLEAN, NEW YORK.

ROLLING SHUTTER.

.SEEGIEEGATION forming part of Letters Patent No. 680,100, dated August6, 1901.

Application filed February 28,1901. Serial No. 49,319. (No model.)

To all whom it may concern.-

Be it known that I, PERov HUNT WILSON, a subject of the King of England,residing at Olean, in the county of Cattaraugus and State of New York,have invented certain new and useful Improvements in Rolling Shutters,of which the following is a specication.

My invention relates to rolling shutters-- that is, shutters consistingof slats connected edge to edge, but jointed so as to be rolled into acylinder or over a cylinder; and my invention consists iu means forincreasing the durability of the structure and reducing theopportunities for the passage of moisture or currents between the edgesof the shutter and its guides, as fully set forth hereinafter, and asillustrated in the accompanying drawings, in which Figure l is aperspective View of one part of a roller-shutter provided with myimprovements. Fig. 2 is a cross-section of one of the slats; Fig. 3, aperspective view of one end of one of the slats with its cap-piece; Fig.4, a longitudinalsection, the cap-piece having no rib; Fig. 5, alongitudinal section showing the cap-piece with a rib; Figs. 6, 7, and8, sectional views illustrating modifications.

The shutter consists of a series of slats A, which, as shown, are ribbedat one edge and recessed at the opposite edge, so that when connectedtogether by a flexible strap a, as

' shown in Fig. 1, or by hinges or in any other suitable manner therewill be formed a practically continuous but flexible and jointed shield,and when the structure is erected the ends of the shield are guidedbetween guides b b, which may be independent of each other or consist ofa U-shaped or channeled bar. The slats as generally constructed are ofwood sheathed with a metal sheathing c, and in the course of time thissheathing wears away at the point where it slides in frictional con tactwith the inner faces of the guides, the sheathing being generally ofmetal of thin gage. Further, rain beating against the outside of thestructure follows the surface of the sheathing, works its way betweenthe latter and the guides and into the end of the wooden slats, and soonrots the latter. In the ordinary construction also there is opportunityfor the wind to pass readily between the ends of the shutter and theguides, or in case of fire for smoke and iiame to follow the same courseoutward. In order to overcome these objections, I apply to the end ofeach slat a cap-piece C, preferably of cast metal, but which may bestamped up in some instances of sheet metal, and so sealing or coveringthe end of the slat in any suitable manner as to prevent the access ofmoisture and also in some cases to afford a greater mass of metal, whichwill not wear so rapidly, which strengthens the slat, and which presentsshoulders fr, that prevent the rain from following the surface of theslat and working around the end of the same between the guides.

.In the forms shown in Figs. 4 and 5 the cap-piece C is socketed andvthe socket conforms to the end ot' the slat, but is tapering toward itsclosed end, and the end of the slat is driven into the same, thussecuring a close fit, which would prevent rattling and the access ofmoisture and tend to hold the parts together, a screw or rivet d,however, being generally employed to hold the cap-piece in place.

In the construction shown in Fig. 7 the cappiece C fits fiat against theend of the sheathing c, which may extend slightly beyond the wooden coreto leave a space y for the reception of any suitable Waterproof materialor composition t. In other cases the sheathing c may be extendedl andfolded in over1 the end and soldered at the meeting edges, as in Fig. 8.Y

To prevent the Vready passage of currents of air or smoke or liamearound the ends of the shutter and between it and the guides and secureother advantages, I prefer to provide the cap-piece with a vertical ribc and to provide vertical guides therefor, as by inserting guide-stripsff between the guides b h, or, as shown in Fig. 6, the guide may be soconstructed as to present a narrow channel y for receiving the ribs. In.either case the presence of the rib extending into the channel greatlyreduces the chance of air-currents or smoke or flame finding their wayaround the edges of the shutter, and it also serves to so center andguide the slat that its faces need not bear on the parts h b ot' theguide, thus preventing the sheathing from being worn.- Tvhe channeledguides, however, may be used with rolling shutters'of otherconstructions than that shown.

While I have referred to the slats as being sheathed, it of course willbe understood thatl my improvement vcan be applied where the slats areotherwise constructed.

Without limiting myself to the precise conf struction and arrangement ofparts shown, I claim as my inventiony y y 1. A rolling shutterconsisting of a, series ot' parallel non-metallic slats connected edgeto edge, and each` provided at the ends with independent inclosing cap'-vpieces, substantially as set forth.-

2. A slat for a rolling shutter provided with cap-pieces sealing theends and with a cement below the cap pieces, substantially as set forth.

3. The combination with the side guides of a rolling shutter, of aseries of connected nonmetallio slats each provided with a separateinclosing cap-piece extending between said v guides, substantially asset forth.

4. The combination with the side guides of a rolling shutter, of aseries of connected slats each provided with an end bearing consistingof a cap-piece within which the end of the slat is confined,substantially as set forth.

5. The combination kwith the side guides of a rolling shutter, of aseries of connected slats each provided with'an end bearing consisting0f wap-.piecehaving,tapernglsecket With- .in which the endof the slatisconfined, substantially as set forth.

6. The combination with the side guides of a rolling shutter, of aseries of connected nonmetallic slats each provided with a metallicsheath and with an end bearing consisting of a cap-piece within whichthe end of the s lat is confined, substantially as set forth.

7. The combination with a rolling shutter consisting of a series ofconnected slats, of guides, and a rib or projection at the end of eachslat extendingbetween said guides, substantially as set forth.

8. The combination with the slats of a roll ing shutter, of separatecap-pieces sealing the ends'of the slats and provided with verticairibs, substantially forth.

9. The combination with a rolling shutter having slats with projectionsat the ends, of a guide receiving the lends of the slats and providedwith a channel receiving said projections, substantially as set forth.

In testimony whereof I'have signed my name to this specification in thepresence of two subscribing witnesses.

PERCY I-IUN T /VILSGN.

as and for the purpose set Vitnesses:

J'. H. THOMPSON, J. M. LARKIN.

